Why Does My LG TV Say No Signal: The Reason Is This 

Why Does My LG TV Say No Signal: The Reason Is This 

I recently upgraded to an LG OLED CX 65″ Smart TV and connected my cable box via HDMI cable to it. 

However, when I turned on the TV and switched to the HDMI input, a “No Signal” message popped up on the screen. 

To confirm if I’m on the correct input source, I checked the back of the TV and the source name on the screen. 

As the cable box was turned on and the TV was on the correct input, I wasn’t sure why it still said no signal.

To find out the reason and fix the issue, I referred to the relevant solution article on the LG website. 

Reading some discussion threads also revealed that the error message usually arrives due to hardware issues related to a specific HDMI port. 

I got the best way to hide the “No Signal” message on my LG TV and also learned how to fix it if the message still shows up after the connected device is turned on. 

If your LG TV shows a No Signal message, it is due to an incorrect input, poor signal, or no power from the connected device. Press the Red button once on the LG Magic Remote to hide the message window permanently.  

Hide The No Signal Message Via LG TV Remote   

Your LG TV screen may keep showing a No Signal message if it’s not receiving any video signal from the external device connected to it. 

This message keeps appearing along with the screensavers even when the TV is in standby mode. 

You can easily hide the annoying No Signal message and view the beautiful series of screensavers on your TV screen by using the LG Magic Remote. 

Moreover, once you hide this message, it won’t appear on the TV screen even if you switch to a blank or incorrect HDMI input. 

To hide the No Signal message on your LG Smart TV: 

  • Make sure that your 
  • Simply press the Red button available on the LG Magic Remote 
  • The No Signal message will disappear right away from the TV screen


  • This method is limited to the LG TVs launched after 2021 and later
  • The No Signal message will be hidden permanently until you press the Red button on the remote to view it again 

Update Your LG TV To The Latest Firmware Version 

If your TV firmware is outdated, you may not be able to hide the No Signal message.

You need to ensure that your LG TV is running on the latest firmware version for the Red Button shortcut to work.  

You can download & install the latest software updates from the TV Settings. 

Here’s how to check for updates on an LG Smart TV: 

  • Firstly, make sure that your TV is connected to the internet via WiFi or ethernet cable 
  • Press the Settings button on your LG TV remote 
  • Navigate to All Settings 
  • Go to Support > Software Update > Check for Updates 
  • If a new update is available, Download and Install it on your TV
    • You can also enable Auto Update to ensure that your TV updates automatically every time a new software version is available
  • Once the download is complete, power OFF your LG TV and power it ON after 10 seconds to install the new update 

Note that the procedure to check for firmware updates may vary based on your LG TV WebOS version. You can refer to the TV’s user manual for the correct instructions. 

Switch To The Correct Input On Your LG TV To Avoid The No Signal Message 

You may be getting the no signal message after connecting an external device like a game console, cable box, streaming player, etc. to your LG TV. 

This is usually because the TV is on the wrong input source. Make sure that your TV is switched to the same input source as the external device connected to it. 

You may want to switch to the correct input source to get rid of the no signal error message and start using your preferred device on the LG TV. 

There are two ways to change the input source on your LG TV: 

  • Press the Input or Source button on your LG TV Remote and select your preferred input from the list
  • Alternatively, you can go to the TV/Input menu available on the LG TV Home screen and switch to your desired one 

Inspect The Cable Connections On Your LG TV 

If you’re still getting the No Signal message after switching to the correct input, the issue might be related to the cable connecting the external device to your LG TV. 

A loose connection or damaged cable can cause the TV to show a no signal error if it’s not receiving any signal from the connected device. 

Check the HDMI, coaxial, or composite cables connected to your TV. Inspect them for any physical damage that may interrupt the signal strength of the connected device. 

If you notice any damage or are skeptical about the cable being defective, try replacing it with a new one. 

Make sure that the cables are connected firmly to their respective ports. 

Unplug the cables and plug them back in to ensure that each cable is inserted tightly. 

Once all the cables are inserted, turn on the TV and check if the No Signal message has disappeared. 

Ensure That The Connected Device Is Not On Standby Mode 

After making sure that the cables are not damaged and there’s no loose connection, check if the connected device such as the game console or cable box is not turned off or on standby mode.

Sometimes, the device may automatically enter the standby or sleep mode after a certain amount of time which can lead to the No Signal error message.

You can change the sleep or standby timer by going into the device settings to avoid getting the message. 

Once the device is turned back on or the sleep mode is deactivated, you should notice the No Signal message disappear. 

Power Cycle Your LG TV To Remove Excess Power 

If you’re still getting the No Signal message, try power cycling your LG TV. 

A power cycle force restarts your TV while closing all the background processes and running applications. 

Moreover, it also removes any excess power left in the TV before restarting it. 

Follow these steps: 

  • Unplug your LG TV from the wall outlet 
  • Wait for at least 60 seconds 
  • Meanwhile, press and hold the power button of your TV for about 30 seconds 
  • Plug the TV back in and switch to the correct input 
  • Check if the No Signal message has disappeared 

Try Connecting A Different Device To Your LG TV 

If you’re getting the No Signal message for a specific device, try connecting a different device to the same HDMI port on your LG TV. 

If it connects successfully, the problem might be with the device you’re trying to connect to the TV. 

You can also try connecting the device to a different port to check if there’s any issue with a specific HDMI port of your TV. 

Factory Reset Your LG TV If The No Signal Message Still Shows Up  

If none of the above solutions help you get rid of the No Signal message, you may want to try factory resetting your LG TV. 

A factory reset restores all the TV settings to their default and also deletes any account information, installed app data, and other saved settings. 

Prefer going for a factory reset only after you’ve tried all the above mentioned troubleshooting methods. 

The procedure to factory reset your LG TV will vary depending on its WebOS version. 

WebOS 22 (2022 and Later Models) 

  • Press the Settings button on your LG TV remote and navigate to All Settings
  • Go to the General settings option and select System
  • Navigate to the Reset to Initial Settings option
  • Read the warning message carefully and press OK to confirm the factory reset 
  • Your TV will restart automatically once the procedure is completed
  • Try switching to your desired input to confirm if the No Signal message is gone 

WebOS 6.0 (2021 Models) 

  • Press the Settings button on your Magic Remote and go to All Settings 
  • Go to General > System > Reset to Initial Settings 
  • After reading the warning message, press OK to confirm the factory reset 
  • Once the factory reset is complete, your TV will automatically restart 
  • Follow the on-screen instructions and confirm the installation method
    • The installation can be done through the LG ThinQ app available on your PC or mobile device 
  • Once the setup is complete, try switching to your desired input to confirm if the No Signal message has disappeared

Note: The location of the Restore to Initial Settings option varies depending on the WebOS version on older LG TVs as well. Refer to the user manual for more information on how to factory reset your LG TV. 

Get In Touch With LG Support For Further Assistance

If the factory reset didn’t help solve the No Signal error message, you can contact the LG Support Team as a last resort. 

Provide them with your LG TV model details and the device you’re trying to connect to your TV that shows the No Signal message. 

Based on your problem description, the authorized agent will diagnose the issue and suggest the best possible troubleshooting method. 

You can also opt for a repair service in case of a suspected hardware issue with minimal or no extra charges if your TV is under warranty.  

Get The Signal Back On Your LG TV  

If you’re trying to connect a game console such as Xbox Series X or PlayStation 5 to your LG TV, make sure that you’re using a certified HDMI cable. 

You can try replacing the older HDMI cable with a new HDMI 2.1 cable as it’s likely to fix the No Signal message if it is caused due to a faulty HDMI cable. 

If you’re getting a No Signal message while trying to use Apple TV on your LG TV, try using the LG Magic Remote to control the devices instead of using the Apple TV Remote via HDMI-CEC. 

The HDMI-CEC function is called Simplink on LG TVs which allows you to control multiple devices through the TV remote. 

Connect your Apple TV device to the SIMPLINK HDMI output on your TV. 

To enable Simplink on your LG TV, go to All Settings and select General. Navigate to the SIMPLINK feature and activate it. 

The Apple TV will now turn on automatically as you turn on your LG TV through the remote control. 

Frequently Asked Questions 

Can an LG TV show a No Signal message due to a hardware issue? 

An LG TV may show a No Signal message due to a faulty HDMI port or broken motherboard. A faulty HDMI port will prevent the TV from receiving any signal from the connected device. To avoid the error message, try connecting your device to a different HDMI port to check if that helps fix the issue. You may need to get professional help and go for an authorized repair service to fix any existing issues with the TV motherboard. 

Why does my LG TV display “No Signal” when using an antenna? 

If you’re using an antenna to receive over-the-air channels, the “No Signal” message could indicate a weak or interrupted signal. Check your antenna’s position, ensure it’s properly connected to the TV, and perform a channel scan to reacquire the signals. Press the Settings button on your TV Remote. Go to All Settings > Channel Tuning > Manual Tuning. Check the Signal Strength and Signal Quality for a selected channel and make sure that it is above 80%. You can also try shifting the position of the antenna and check if that helps improve the signal strength. 

Can a software update fix the “No Signal” issue on my LG TV?  

If the no signal message is showing up on a specific connected device, a firmware update may fix any existing compatibility issues. Additionally, some latest firmware updates have also added an option to hide the No Signal message window that kept showing on the TV screen with the screensaver. If your LG TV is running on the latest firmware version and was launched after 2021, press the Red Button on the LG remote to hide the message. 

How to fix the No Signal message for a specific app or channel on LG TV?   

If you’re facing issues with a specific app or channel on the LG TV, you can try reinstalling or updating the app. Press and hold the thumbwheel on an app icon and reposition it. Click on the cross to uninstall the app. To update or reinstall the app, launch the LG App Store and search for the app name and select Install/Update. 

About the author

Maria Chan, or MC, as we call her, is the genius girl-boss who gave up on her cushy silicon-valley job to grind it out with us. Her undying pursuit of wanting Zeebox to the best makes it very clear that she has no interest in running a generic tech-site.

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